30945201240 has 64 divisors (see below), whose sum is σ = 92868249600. Its totient is φ = 8249151872.

The previous prime is 30945201229. The next prime is 30945201253. The reversal of 30945201240 is 4210254903.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 30945201198 and 30945201207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308809 + ... + 396551.

It is an arithmetic number, because the mean of its divisors is an integer number (1451066400).

Almost surely, 2^30945201240 is an apocalyptic number.

30945201240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30945201240 is an abundant number, since it is smaller than the sum of its proper divisors (61923048360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30945201240 is a wasteful number, since it uses less digits than its factorization.

30945201240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90696 (or 90692 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 30945201240 in words is "thirty billion, nine hundred forty-five million, two hundred one thousand, two hundred forty".